نتایج جستجو برای: suspensor
تعداد نتایج: 144 فیلتر نتایج به سال:
Fertilization of the female gametophyte in angiosperm plants initiates a process of coordinated development of embryo, endosperm, and seed coat that ensures the production of a viable seed. Mutant analysis has suggested that communication between the endosperm and the seed coat is an important determinant in this process. In addition, cell groups within the embryo, derived from the apical and f...
تکوین رویان، کیسه رویانی و آندوسپرم در Astragalus eriocarpus (sect. Malacothrix)، A. glaucacanthus (sect. Poterion)، A. remotijugus (sect. Caprini)، A. chrysostachys (sect. Hymenostegis) و A. compactus (sect. Rhacophorus) بررسی شده است. تخمکها در هر پنج گونه نیمه واژگون هستند و بافت خورش توسط دو پوسته احاطه میشود. سفت به واسطه رشد نامتقارن پوسته خارجی، زیگزاکی است. الگوی کلی رویانزایی در هر...
Wandering spleen is a rare condition , which is characterized by excessive mobility of spleen , due to absence or lack of its suspensor ligaments , in which the spleen migrate from it’s normal position (left upper abdomen) to lower abdomen , and even into pelvis. The case was a 94-year young woman , admitted to Imam Khomeini Hospital with colic abdominal pain , without any previous history...
ULTRASTRUCTURAL AND CYTOCHEMICAL STUDIES OF THE EMBRYO SUSPENSOR OF SEDUM REFLEXUM L. (CRASSULACEAE)
The interspecific hybrid fir Abies cilicica × Abies cephalonica is based on native species Abies cephalonica (Loud.) and Abies cilicica (Ant. et Kotschy) Carr. Many variants of nutrient media have been tested. The medium BAP at a concentration of 1 mg·l–1, 1,000 mg·l–1 myo-inositol, 500 mg·l–1 glutamine, and 1,000 mg·l–1 casein was found to be the most suitable initiation medium for somatic emb...
This study examines the distribution of primary and secondary space holders integrated in morphological feeder functional groups as well species richness over seasons on northern Patagonian rocky shores. We also evaluated whether temporal changes richness, assemblage structure turnover were related to seasonal changes. These patterns studied by non-destructive samplings between December 2013 Ma...
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